Push-button matrix



FIG. 1 is a front elevational view of a first embodiment thereof;

FIG. 2 is a left side elevational view of a first embodiment thereof;

FIG. 3 is a right side elevational view of a first embodiment thereof;

FIG. 4 is a top plan view of a first embodiment thereof;

FIG. 5 is a bottom plan view of a first embodiment thereof;

FIG. 6 is a front elevational view of a second embodiment thereof;

FIG. 7 is a left side elevational view of a second embodiment thereof;

FIG. 8 is a right side elevational view of a second embodiment thereof;

FIG. 9 is a top plan view of a second embodiment thereof;

FIG. 10 is a bottom plan view of a second embodiment thereof;

FIG. 11 is a front elevational view of a third embodiment thereof;

FIG. 12 is a left side elevational view of a third embodiment thereof;

FIG. 13 is a right side elevational view of a third embodiment thereof;

FIG. 14 is a top plan view of a third embodiment thereof;

FIG. 15 is a bottom plan view of a third embodiment thereof;

FIG. 16 is a front elevational view of a fourth embodiment thereof;

FIG. 17 is a left side elevational view of a fourth embodiment thereof;

FIG. 18 is a right side elevational view of a fourth embodiment thereof;

FIG. 19 is a top plan view of a fourth embodiment thereof;

FIG. 20 is a bottom plan view of a fourth embodiment thereof;

FIG. 21 is a front elevational view of a fifth embodiment thereof;

FIG. 22 is a left side elevational view of a fifth embodiment thereof;

FIG. 23 is a right side elevational view of a fifth embodiment thereof;

FIG. 24 is a top plan view of a fifth embodiment thereof;

FIG. 25 is a bottom plan view of a fifth embodiment thereof;

FIG. 26 is a front elevational view of a sixth embodiment thereof;

FIG. 27 is a left side elevational view of a sixth embodiment thereof;

FIG. 28 is a right side elevational view of a sixth embodiment thereof;

FIG. 29 is a top plan view of a sixth embodiment thereof;

FIG. 30 is a bottom plan view of a sixth embodiment thereof;

FIG. 31 is a front elevational view of a seventh embodiment thereof;

FIG. 32 is a left side elevational view of a seventh embodiment thereof;

FIG. 33 is a right side elevational view of a seventh embodiment thereof;

FIG. 34 is a top plan view of a seventh embodiment thereof; and,

FIG. 35 is a bottom plan view of a seventh embodiment thereof.

The broken line showings of FIGS. 1-35 are for illustrative purposes only and form no part of the claimed design.

The “1” and “#” keys in FIGS. 1-5 have been shaded to represent the color green. The “1” and “#” keys in FIGS. 6-10 have been shaded to represent the color red or pink. The “1” and “#” keys in FIGS. 11-15 have been shaded to represent the color yellow or gold. The “1” and “#” keys in FIGS. 16-20 have been shaded to represent the color gray or silver. The “1” and “#” keys in FIGS. 21-25 have been shaded to represent the color violet or purple. The “1” and “#” keys in FIGS. 26-30 have been shaded to represent the color orange. The “1” and “#” keys in FIGS. 31-35 have been shaded to represent the color brown. 

The ornamental design for a push-button matrix, as shown and described. 